Ask in a reseller forum whether you need cash or accrual accounting and you'll get a confident answer: accrual, because you carry inventory, full stop. It gets repeated often enough that most sellers never check it against the actual rule. For the overwhelming majority of resellers, it's wrong — not because the forum is lying, but because it's describing the rule from before 2018.
The rule that actually applies
Under IRC Section 448(c), a business qualifies as a "small business taxpayer" if its average annual gross receipts for the prior three tax years don't exceed a threshold that's adjusted for inflation every year. For tax years beginning in 2026, that threshold is $32 million, up from $31 million in 2025, built up annually from the $25 million base the Tax Cuts and Jobs Act set starting in 2018 (Rev. Proc. 2025-32).
If you're under that line — and unless you're running a genuinely large operation, you are — you qualify as a small business taxpayer, and two things follow:
- You can use the cash method for your whole return, not just for
- inventory-free service income.
- You can account for inventory as **non-incidental materials and
- supplies** under Section 471(c) instead of running full inventory
- accounting, and you're exempt from the UNICAP capitalization rules in
- Section 263A that would otherwise make you capitalize costs like storage
- and some overhead into cost of goods.
That's the actual rule. "You have inventory, so you must use accrual" stopped being generally true for small resellers in 2018, and the threshold has only gone up since.
What this doesn't let you do
Here's the part that trips people up, and the reason "just go cash method" isn't the free lunch it sounds like on a forum thread.
Treasury Regulation 1.471-1(b)(4)(i) says the cost of inventory you're treating as non-incidental materials and supplies is deducted in the later of the year you paid for it or the year you used or consumed it — and for a reseller, "used or consumed" means the year the item goes to a customer, not the year it lands in your bins. Pay $40 for a jacket in March and sell it in November: the $40 is a November deduction, not a March one, cash method or not.
In practice, cash-method small business taxpayers end up doing almost the same thing accrual would have forced anyway, specifically for cost of goods sold: cost tracked per item, deducted when that item sells. Cost basis per item, not per lot, is exactly the number this rule is asking for. What actually changes with cash method is everything other than inventory — income is taxed when the payout hits your account rather than when the item sells, expenses are deductible when paid rather than when incurred, and UNICAP disappears entirely. That's real simplification. It just isn't "deduct sourcing cost the day you buy it," which is the version of cash method a lot of sellers assume they're getting.
A worked example
Say you buy a 40-item thrift lot for $310 in August, on the cash method as a small business taxpayer.
- August: you pay $310. No deduction yet — the inventory hasn't sold.
- By December, 28 of the 40 items have sold for a combined $890. Using
- per-item cost allocation instead
- of splitting $310 evenly across all 40 items, the cost basis of those 28
- items works out to $240.
- Your December deduction is $240 — the cost of what actually sold —
- not the $310 you spent in August, and not a fraction based on time held.
- The remaining 12 items, carrying $70 of the original cost, sit as
- un-deducted inventory cost until they sell, or until you [write them off
- as dead stock](/blog/dead-stock-inventory-write-off-resellers-2026) if
- they never do.
The $890 in sales is reported as income when the payouts actually hit your bank, not when a buyer clicks "buy." That timing — income on receipt, expenses on payment, inventory cost on sale regardless of method — is the real shape of small business taxpayer cash accounting for a reseller.
When accrual is still the right call anyway
The exemption is available to almost every individual reseller, but "available" isn't "mandatory," and a few sellers are genuinely better off staying on accrual:
- You're applying for a loan or bringing in an investor who wants
- financials on an accrual basis, or you already produce an applicable
- financial statement for another reason. Section 471(c) lets you conform
- your tax treatment of inventory to your books, so if your books are
- accrual, your tax inventory accounting can follow them.
- You're close to the threshold and growing fast. Average receipts
- climbing from, say, $28 million toward $34 million over three years
- pushes you out of small business taxpayer status, and an involuntary
- method change mid-stride is worse than choosing deliberately ahead of
- time.
- You want year-over-year numbers that aren't lumpy from payout timing
- around December 31. Cash-method income recognition means a batch of
- late-December sales that pays out January 2 lands in next year's return,
- which can make one year look artificially strong or weak.
For nearly everyone else, cash method with 471(c) inventory treatment is simpler to run and doesn't cost you anything the IRS didn't already require.
Changing your method, if you need to
A brand-new business adopts its method just by filing that way on its first return — no separate paperwork beyond the return itself. An existing business switching from full accrual to the small business taxpayer cash method needs to file Form 3115, Application for Change in Accounting Method. Most such changes qualify for the IRS's automatic change procedures rather than requiring advance consent, but "automatic" still means a form filed with your return and a required disclosure statement, not a box you check. Have a CPA prepare it — the Section 481(a) adjustment for previously capitalized costs is exactly the kind of detail that's cheap to get right the first time and expensive to unwind later.
What to actually do
- **Check your average gross receipts over the last three years against
- $32 million (2026).** If you're nowhere close, the "I must use accrual
- because I have inventory" advice you've been given doesn't apply to you.
- **Don't expect a cash-method election to let you deduct sourcing cost
- the month you buy.** Inventory cost still lands in the year the item
- sells, whichever method you're on — the real change is in everything
- else.
- Keep cost basis at the item level regardless of method. It's what
- both the small business taxpayer inventory rule and honest profit math
- actually need, and it's the same number either way.
- Don't switch mid-year on your own read of a forum thread. A method
- change is a Form 3115 filing done with a CPA, not a settings toggle.
PalmFlow tracks cost basis per item as it sells, not per lot and not on a schedule — which is the same number Section 471(c) asks for whether you're on cash or accrual. It doesn't file Form 3115 or pick your accounting method; that's a decision for you and a CPA to make once, not something to guess from a blog post. Free plan, 50 items, no card required.
Disclaimer: this is general information, not tax or legal advice. Your gross receipts calculation, whether you already produce an applicable financial statement, and whether a method change makes sense all depend on your specific situation — confirm with a CPA before filing anything.